Summary: This document contains a summary of albedo estimates produced through 'Approach 3', including the figures listed below:
This figure shows several plots related to the final albedo estimates produced by Approach 3.
This figure shows an initial attempt at a mixed effects model analysis.
Correlation matrix of explanatory variables: It looks like 'Moose Density' and 'Roe Deer Density' are moderately correlated (~0.51).
Model in R: Random effect is month nested under site ("LocalityName")
model <- lmer(Composite_Albedo ~ Treatment +
Productivity_Index +
Canopy_Height_MAD +
Clearcut_Lidar +
Moose_Density +
Red_Deer_Density +
Roe_Deer_Density +
(1 | LocalityName/Month),
data = model_data)
Model Output:
| Â | Composite_Albedo | ||
|---|---|---|---|
| Predictors | Estimates | CI | p |
| (Intercept) | 0.16940 | 0.12487 – 0.21393 | <0.001 |
| Treatment [open] | 0.00419 | 0.00308 – 0.00530 | <0.001 |
| Productivity_Index | -0.05283 | -0.10735 – 0.00170 | 0.058 |
| Clearcut_Lidar | -0.00362 | -0.00683 – -0.00041 | 0.027 |
| Moose_Density | 0.00073 | 0.00029 – 0.00118 | 0.001 |
| Red_Deer_Density | 0.00045 | -0.00075 – 0.00165 | 0.464 |
| Roe_Deer_Density | -0.00185 | -0.00291 – -0.00079 | 0.001 |
| Random Effects | |||
| σ2 | 0.00 | ||
| τ00 Month:LocalityName | 0.01 | ||
| τ00 LocalityName | 0.00 | ||
| ICC | 0.99 | ||
| N Month | 12 | ||
| N LocalityName | 37 | ||
| Observations | 888 | ||
| Marginal R2 / Conditional R2 | 0.069 / 0.990 | ||
Exploring Model Fit:
This section shows relevant data and albedo estimates for each SustHerb site.
## Site: bratsberg
## Site: didrik_holmsen
## Site: drangedal1
## Site: drangedal3
## Site: drangedal4
## Site: eidskog
## Site: fet_3
## Site: fritsoe1
## Site: fritsoe2
## Site: furesdal
## Site: halvard_pramhus
## Site: hi_tydal
## Site: kviteseid1
## Site: kviteseid2
## Site: kviteseid3
## Site: malvik
## Site: namdalseid_1kub
## Site: nome_cappelen1
## Site: nome_cappelen2
## Site: notodden3
## Site: notodden5
## Site: notodden6
## Site: nsb_verdal
## Site: selbu_flub
## Site: selbu_kl
## Site: selbu_sl
## Site: singsaas
## Site: sl_tydal
## Site: stangeskovene_aurskog
## Site: stangeskovene_eidskog
## Site: steinkjer_1bbb
## Site: steinkjer_2bbb
## Site: stig_dahlen
## Site: sub_namdalseid
## Site: truls_holm
## Site: verdal_1vb
## Site: verdal_2vb